30 years ago in DOS gaming: King's Quest 1

Quest for the Crown is the first game in the popular series of King's Quest. Developed by Sierra On-line, King's Quest is an early adventure game (one of the first animated adventures), a step up from the classic graphical interactive fiction of the time. The player can use the keyword both to move the character around the game world AND to perform actions in text adventure style, by typing verbs and nouns.